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Chuck mechanism capable of automatically changing tool accessories

An automatic tool replacement technology, applied in the field of machinery, can solve the problem that the operator can only hold it with one hand, which is inconvenient, and achieve the effect of functional versatility, quick replacement, and reduced labor intensity.

Active Publication Date: 2012-07-18
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the traditional collet mechanism can effectively realize the installation of tool accessories, when installing the tool accessories, it is often necessary to operate the collet mechanism and the tool accessories at the same time with both hands, which is very inconvenient in actual use, because the operator often only has to single-handedly hand holding electric hand tool
At present, there is no chuck mechanism that can realize automatic replacement of tool accessories through one-handed operation of the user

Method used

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  • Chuck mechanism capable of automatically changing tool accessories
  • Chuck mechanism capable of automatically changing tool accessories
  • Chuck mechanism capable of automatically changing tool accessories

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] see figure 1 , the reset assembly in Example 1 includes: a washer 7 fixedly connected to the sleeve 2, a retaining ring 6 fixedly connected to the output shaft 1 for blocking the washer 7, and a spring 8. A stepped surface is formed inside the sleeve 2, and the spring 8 It is arranged between the stepped surface and the washer 7 , one end of which bears against the washer 7 and the other end bears against the stepped surface, thereby utilizing the elastic energy of the spring 8 to drive the casing 2 to reset automatically. The pop-up parts include: a central piece 11 partially arranged inside the cavity of the output shaft 1, a pop-up spring 10 connected to the central piece 11 at one end, and a sliding pin 9 provided with a spring groove for accommodating the above-mentioned pop-up spring 10, which is realized by using the elastic energy of the spring. Automatic pop-up tool attachment. Of course, in order to save raw materials, the slide pin 9 may not be provided in t...

Embodiment 2

[0060] see figure 2 , as an improvement of the present invention, in Embodiment 2, the spring 8 and the washer 6 in Embodiment 1 are replaced by the return magnetic part 14, and the return magnetic part 14 is repelled by the magnetism of the attracting part 52, thereby using magnetic energy to drive the sliding Pin 9 resets automatically.

[0061] As a further improvement of the present invention, the following improvements can also be made to the pop-up assembly: a pair of mutually exclusive first pop-up magnetic pieces 13 and second pop-up magnetic pieces 12 respectively connected to the center piece 11 and the slide pin 9 are used instead of implementing In the pop-up spring in Example 1, the central piece 11 and the slide pin 9 are also provided with grooves for accommodating the first pop-up magnetic piece 12 and the second pop-up magnetic piece 13 respectively. Utilizes magnetic energy for automatic ejection of tool attachments.

Embodiment 3

[0063] see image 3 , as another improvement of the present invention, the sliding pin 92 in Embodiment 3 is magnetic as a whole, replacing the sliding pin 9 and the second pop-up magnetic piece 13 in Embodiment 2, and there is another one that is compatible with the central piece 11 With the connected pop-up magnetic piece 15, the sliding pin 92 and the pop-up magnetic piece 15 repel each other. This solution also utilizes magnetic energy to realize automatic ejection of tool attachments.

[0064] Of course, as a further improvement of the present invention, magnets can also be used to make the central piece, instead of the central piece 11 and the pop-up magnetic piece 15, the magnetic slide pin 92 is repelled from the central piece made of magnets, and the magnetic energy is used to realize automatic The principle of the pop-up tool attachment is the same as that of the above embodiments, and will not be repeated here.

[0065] In order to ensure that the sliding pin 9 wi...

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Abstract

The invention discloses a chuck mechanism capable of automatically changing tool accessories, comprising an output shaft, a casing, a positioning component, an attracting component and a resetting assembly. The output shaft is provided with a through cavity for accommodating the tool accessories; the casing is arranged at the periphery of one end of the output shaft and can move relative to the output shaft; the positioning component is used for positioning the tool accessories accommodated in the output shaft; the attracting component is arranged on the output shaft and used for attracting the attracting component; the resetting assembly is arranged between the output shaft and the casing and used for driving the casing to reset; the side wall of the accommodating cavity of the output shaft is provided with a positioning hole used for accommodating the positioning component and making one part of the positioning component enter the accommodating cavity of the output shaft; the positioning component is arranged in the positioning hole; and the casing is provided with a plurality of inner wall sections which cover the periphery of the positioning hole and used for extruding or loosening the positioning component. The tool accessories can be changed automatically and more quickly by an operator by a single hand, the action of changing the tool accessories by the user is simplified, the labor intensity is reduced, the work efficiency is ensured, and the function university and extensibility and the use convenience of the electric handheld tool are realized hereby.

Description

technical field [0001] The invention relates to a tool accessory, in particular to a chuck mechanism for automatically changing tool accessories; it belongs to the field of machinery. Background technique [0002] As the use of electric hand tools becomes more and more widespread, electric hand tools with single and non-replaceable tool attachments cannot meet people's higher requirements for versatility, scalability and convenience. [0003] In actual use, it is often necessary to install different tool accessories on an electric hand tool to achieve functional expansion. On the basis of effective transmission of the tool accessories, it can effectively clamp and achieve faster replacement chucks. Mechanisms become the key to functional versatility, scalability, and convenience. [0004] Although the traditional collet mechanism can effectively realize the installation of tool accessories, when installing the tool accessories, it is often necessary to operate the collet me...

Claims

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Application Information

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IPC IPC(8): B25F5/00
Inventor 周红陶
Owner NANJING CHERVON IND
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